Built for harsh environments, this 4WD off-road cleaning truck is designed for efficient photovoltaic panel maintenance in deserts and remote solar farms. It features strong off-road capability and stable operation on uneven terrain, ensuring continuous cleaning performance. The high-pressure water system combined with an extended cleaning arm effectively removes dust and debris, helping improve solar energy efficiency. As a specialized road cleaning truck, it also demonstrates versatility in environmental maintenance tasks, offering durability, reliability, and cost-effective operation for large-scale renewable energy projects.